Diffusion of gases, Biology

Assignment Help:

Diffusion of Gases

Gases diffuse from areas of higher partial pressure to areas of lower partial pressure. The diffusion along the partial pressure gradient ceases only when the partial pressure in both areas becomes equal. This is true in aquous solutions: within mixtures of gases and across gas-water inter phase. Very seldom diffusion in direction of partial pressure gradient also means diffusion along a concentration gradient. In later sections we shall see how the movement of oxygen and carbon dioxide depends on the partial pressure gradient that exists at the inter phase between vascular: fluids and air in lungs. Within the body at the capillary level the intracellular fluids and vascular fluids develop opposed partial pressure gradients and hence gases move opposite directions.

Having studied the physical basis of gas diffusion we can now proceed to see how animals exchange gases across their respiratory surfaces. First, we shall discuss various arrangements for respiratory gas exchange in animals.


Related Discussions:- Diffusion of gases

Define population size, Define Population size, inbreeding and genetic vari...

Define Population size, inbreeding and genetic variation? "Darwin proposed, and modern evolutionary biology affirms, that evolution is relies on variation in the characteristic

What is facial prosthesis, Q. What is facial prosthesis? Dental implant...

Q. What is facial prosthesis? Dental implants have prosthesis also been used for facial prosthesis which includes nasal, orbital or auricular prosthesis. Implant and bar retain

Explain le compte operation-rev procedure, Explain Le Compte Operation-REV ...

Explain Le Compte Operation-REV Procedure ? This is an alternative type of repair for TGA, VSD and left ventricular outflow obstruction (LVOTQ). In this operation an extrinsic

Assessment of development in children, Assessment of Development in Childre...

Assessment of Development in Children The development of a child is studied through various responses which he exhibits following a natural or experimental stimulus. Basical

Show the valve that separates the aorta from the heart, Q. What is the valv...

Q. What is the valve that separates the aorta from the heart? What is the importance of that valve? The valve between the aorta and the left ventricle is the aortic valve. The

Fumonisins, Fumonisins The most recently characterized mycotoxins of an...

Fumonisins The most recently characterized mycotoxins of any major significance in human health are the fumonisins produced by species of Fusarium, such as F. moniliforme. Like

Human impact on the phosphorus cycle, Human Impact on the Phosphorus Cycle ...

Human Impact on the Phosphorus Cycle Like other biogeochemical cycles, human activities have altered the phosphorus cycle. Human beings mine phosphate rocks and guano deposits

What are the mitochondria, Q. What are the mitochondria? What is the fundam...

Q. What are the mitochondria? What is the fundamental morphology of these organelles and in which cells can they be found? Mitochondria are the organelles in which the most sig

What are the gynoecium and the androecium, Q. What are the gynoecium and th...

Q. What are the gynoecium and the androecium? What are the other structures of flowers? Androecium is set of male reproductive structures of flowers it comprehends the stamens

Diagram, #questioi want clarius diagramn..

#questioi want clarius diagramn..

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd